11225242511 has 32 divisors (see below), whose sum is σ = 13921090560. Its totient is φ = 8833245696.

The previous prime is 11225242481. The next prime is 11225242513. The reversal of 11225242511 is 11524252211.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11225242511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11225242513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814385 + ... + 828053.

It is an arithmetic number, because the mean of its divisors is an integer number (435034080).

Almost surely, 2^11225242511 is an apocalyptic number.

11225242511 is a deficient number, since it is larger than the sum of its proper divisors (2695848049).

11225242511 is a wasteful number, since it uses less digits than its factorization.

11225242511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13863.

The product of its digits is 1600, while the sum is 26.

Adding to 11225242511 its reverse (11524252211), we get a palindrome (22749494722).

It can be divided in two parts, 11 and 225242511, that added together give a palindrome (225242522).

The spelling of 11225242511 in words is "eleven billion, two hundred twenty-five million, two hundred forty-two thousand, five hundred eleven".